Hooklift comprising a hook positioning device

Abstract

The hooklift comprises a jib, a hook capable of being engaged in a ring of a container, and a positioning device comprising a slot and a slider capable of sliding in the slot. The hook is slidably mounted relative to the jib. The slider is capable of abutting selectively against a first end of the slot or against the second end of the slot so as to respectively prevent a sliding of the hook relative to the jib in a first sliding way beyond a first predefined position of the hook relative to the jib or in a second sliding way beyond a second predefined position of the hook relative to the jib.

The invention claimed is: 
     
       1. A hooklift comprising:
 a jib, 
 a hook configured to engage with a ring of a container, the hook slidably mounted relative to the jib, and 
 a positioning device comprising a first slot and a slider, the first slot arranged in one of either the hook or the jib, and the slider fastened onto the other of the hook or the jib so that the slider slides in the first slot when the hook slides relative to the jib, wherein the first slot has a first end and a second end, the slider configured to selectively abut against the first end of the first slot so as to prevent a sliding of the hook relative to the jib in a first sliding way beyond a first predefined position of the hook relative to the jib and abut against the second end of the first slot so as to prevent a sliding of the hook relative to the jib in a second sliding way beyond a second predefined position of the hook relative to the jib, and 
 wherein the positioning device further comprises a second slot, the second slot arranged in either of the hook or the jib with the first slot. 
 
     
     
       2. The hooklift according to  claim 1 , wherein one of the hook or the jib has a first fastening hole and the other of the hook and the jib has a second fastening hole and a third fastening hole, the first fastening hole, the second fastening hole and the third fastening hole arranged so that:
 when the hook is in the first predefined position, the first fastening hole is located opposite the second fastening hole enabling the insertion of a fastening pin through the first fastening hole and the second fastening hole, to fix the hook in the first position, and when the hook is in the second predefined position, the first fastening hole is located opposite the third fastening hole, enabling the insertion of the fastening pin through the first fastening hole and the third fastening hole to fix the hook in the second position. 
 
     
     
       3. The hooklift according to  claim 1 , wherein the slider configured to be fastened onto the other of the hook or the jib, so that the slider slides in the second slot when the hook slides relative to the jib, and wherein the second slot has a first end and a second end, the slider configured to selectively abut against the first end of the second slot so as to prevent a sliding of the hook relative to the jib in the first sliding way beyond a third predefined position of the hook relative to the jib, or against the second end of the second slot so as to prevent a sliding of the hook relative to the jib in the second sliding way beyond a fourth predefined position of the hook relative to the jib. 
     
     
       4. The hooklift according to  claim 3 , wherein the third predefined position is different from the first predefined position and/or the fourth predefined position is different from the second predefined position. 
     
     
       5. The hooklift according to  claim 3 , wherein the slider comprises a bracket-shaped piece comprising a first portion configured to be fastened by means of a fastening screw onto one of the hook or the jib, and a second portion extending through either of the first slot or the second slot when the first portion is fastened onto one of the hook or the jib. 
     
     
       6. The hooklift according to  claim 2 , wherein one of the hook or the jib has a fourth fastening hole, the fourth fastening hole arranged so that when the hook is in the third predefined position, the first fastening hole, the second fastening hole or the third fastening hole is located opposite the fourth fastening hole, enabling the insertion of a fastening pin through the first fastening hole, the second fastening hole or the third fastening hole and the fourth fastening hole, to block the hook in the third position. 
     
     
       7. A vehicle comprising a frame and the hooklift according to  claim 1  fastened onto the frame. 
     
     
       8. The hooklift according to  claim 1 , wherein the second slot has a first end and a second end, the second end of the first slot and the second end of the second slot located at different heights along a longitudinal axis of either the hook or the jib in which the first slot and the second slot are arranged. 
     
     
       9. The hooklift according to  claim 1 , wherein the first slot and the second slot have different lengths. 
     
     
       10. The hooklift according to  claim 1 , wherein the slider is selectively receivable in either the first slot or the second slot. 
     
     
       11. The hooklift according to  claim 1 , wherein the hook comprises a first fastening hole and the jib comprises a second fastening hole, the first and second fastening holes arranged such that when the hook is in the first predefined position, the first fastening hole is located opposite the second fastening hole, and further comprising a pin configured to be received through the first fastening hole and the second fastening hole. 
     
     
       12. The hooklift according to  claim 11 , wherein the hook comprises a third fastening hole, the third fastening hole and the second fastening hole arranged such that, when the hook is in the second predefined position, the first fastening hole is located opposite the third fastening hole, and the pin is configured to be received in the first fastening hole and the third fastening hole. 
     
     
       13. The hooklift according to  claim 1 , wherein the jib comprises a first fastening hole and the hook comprises a second fastening hole, the first and second fastening holes arranged such that when the hook is in the first predefined position, the first fastening hole is located opposite the second fastening hole, and further comprising a pin configured to be received through the first fastening hole and the second fastening hole. 
     
     
       14. The hooklift according to  claim 13 , wherein the jib comprises a third fastening hole, the third fastening hole and the second fastening hold arranged such that, when the hook is in the second predefined position, the first fastening hole is located opposite the third fastening hole, and the pin is configured to be received in the first fastening hole and the third fastening hole.